3326 lines
73 KiB
JavaScript
3326 lines
73 KiB
JavaScript
/*! Socket.IO.js build:0.9.11, development. Copyright(c) 2011 LearnBoost <dev@learnboost.com> MIT Licensed */
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var io = ('undefined' === typeof module ? {} : module.exports);
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(function() {
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/**
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* socket.io
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* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
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* MIT Licensed
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*/
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(function (exports, global) {
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/**
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* IO namespace.
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*
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* @namespace
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*/
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var io = exports;
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/**
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* Socket.IO version
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*
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* @api public
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*/
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io.version = '0.9.11';
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/**
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* Protocol implemented.
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*
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* @api public
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*/
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io.protocol = 1;
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/**
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* Available transports, these will be populated with the available transports
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*
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* @api public
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*/
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io.transports = [];
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/**
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* Keep track of jsonp callbacks.
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*
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* @api private
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*/
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io.j = [];
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/**
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* Keep track of our io.Sockets
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*
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* @api private
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*/
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io.sockets = {};
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/**
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* Manages connections to hosts.
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*
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* @param {String} uri
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* @Param {Boolean} force creation of new socket (defaults to false)
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* @api public
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*/
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io.connect = function (host, details) {
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var uri = io.util.parseUri(host)
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, uuri
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, socket;
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if (global && global.location) {
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uri.protocol = uri.protocol || global.location.protocol.slice(0, -1);
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uri.host = uri.host || (global.document
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? global.document.domain : global.location.hostname);
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uri.port = uri.port || global.location.port;
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}
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uuri = io.util.uniqueUri(uri);
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var options = {
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host: uri.host
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, secure: 'https' == uri.protocol
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, port: uri.port || ('https' == uri.protocol ? 443 : 80)
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, query: uri.query || ''
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};
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io.util.merge(options, details);
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if (options['force new connection'] || !io.sockets[uuri]) {
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socket = new io.Socket(options);
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}
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if (!options['force new connection'] && socket) {
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io.sockets[uuri] = socket;
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}
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socket = socket || io.sockets[uuri];
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// if path is different from '' or /
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return socket.of(uri.path.length > 1 ? uri.path : '');
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};
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})('object' === typeof module ? module.exports : (this.io = {}), this);
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/**
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* socket.io
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* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
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* MIT Licensed
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*/
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(function (exports, global) {
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/**
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* Utilities namespace.
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*
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* @namespace
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*/
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var util = exports.util = {};
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/**
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* Parses an URI
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*
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* @author Steven Levithan <stevenlevithan.com> (MIT license)
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* @api public
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*/
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var re = /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
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var parts = ['source', 'protocol', 'authority', 'userInfo', 'user', 'password',
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'host', 'port', 'relative', 'path', 'directory', 'file', 'query',
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'anchor'];
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util.parseUri = function (str) {
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var m = re.exec(str || '')
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, uri = {}
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, i = 14;
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while (i--) {
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uri[parts[i]] = m[i] || '';
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}
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return uri;
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};
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/**
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* Produces a unique url that identifies a Socket.IO connection.
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*
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* @param {Object} uri
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* @api public
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*/
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util.uniqueUri = function (uri) {
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var protocol = uri.protocol
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, host = uri.host
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, port = uri.port;
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if ('document' in global) {
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host = host || document.domain;
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port = port || (protocol == 'https'
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&& document.location.protocol !== 'https:' ? 443 : document.location.port);
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} else {
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host = host || 'localhost';
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if (!port && protocol == 'https') {
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port = 443;
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}
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}
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return (protocol || 'http') + '://' + host + ':' + (port || 80);
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};
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/**
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* Mergest 2 query strings in to once unique query string
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*
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* @param {String} base
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* @param {String} addition
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* @api public
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*/
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util.query = function (base, addition) {
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var query = util.chunkQuery(base || '')
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, components = [];
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util.merge(query, util.chunkQuery(addition || ''));
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for (var part in query) {
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if (query.hasOwnProperty(part)) {
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components.push(part + '=' + query[part]);
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}
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}
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return components.length ? '?' + components.join('&') : '';
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};
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/**
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* Transforms a querystring in to an object
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*
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* @param {String} qs
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* @api public
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*/
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util.chunkQuery = function (qs) {
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var query = {}
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, params = qs.split('&')
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, i = 0
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, l = params.length
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, kv;
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for (; i < l; ++i) {
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kv = params[i].split('=');
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if (kv[0]) {
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query[kv[0]] = kv[1];
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}
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}
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return query;
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};
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/**
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* Executes the given function when the page is loaded.
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*
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* io.util.load(function () { console.log('page loaded'); });
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*
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* @param {Function} fn
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* @api public
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*/
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var pageLoaded = false;
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util.load = function (fn) {
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if ('document' in global && document.readyState === 'complete' || pageLoaded) {
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return fn();
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}
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util.on(global, 'load', fn, false);
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};
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/**
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* Adds an event.
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*
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* @api private
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*/
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util.on = function (element, event, fn, capture) {
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if (element.attachEvent) {
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element.attachEvent('on' + event, fn);
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} else if (element.addEventListener) {
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element.addEventListener(event, fn, capture);
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}
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};
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/**
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* Generates the correct `XMLHttpRequest` for regular and cross domain requests.
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*
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* @param {Boolean} [xdomain] Create a request that can be used cross domain.
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* @returns {XMLHttpRequest|false} If we can create a XMLHttpRequest.
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* @api private
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*/
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util.request = function (xdomain) {
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if (xdomain && 'undefined' != typeof XDomainRequest && !util.ua.hasCORS) {
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return new XDomainRequest();
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}
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if ('undefined' != typeof XMLHttpRequest && (!xdomain || util.ua.hasCORS)) {
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return new XMLHttpRequest();
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}
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if (!xdomain) {
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try {
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return new window[(['Active'].concat('Object').join('X'))]('Microsoft.XMLHTTP');
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} catch(e) { }
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}
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return null;
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};
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/**
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* XHR based transport constructor.
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*
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* @constructor
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* @api public
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*/
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/**
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* Change the internal pageLoaded value.
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*/
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if ('undefined' != typeof window) {
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util.load(function () {
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pageLoaded = true;
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});
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}
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/**
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* Defers a function to ensure a spinner is not displayed by the browser
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*
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* @param {Function} fn
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* @api public
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*/
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util.defer = function (fn) {
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if (!util.ua.webkit || 'undefined' != typeof importScripts) {
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return fn();
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}
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util.load(function () {
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setTimeout(fn, 100);
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});
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};
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/**
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* Merges two objects.
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*
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* @api public
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*/
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util.merge = function merge (target, additional, deep, lastseen) {
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var seen = lastseen || []
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, depth = typeof deep == 'undefined' ? 2 : deep
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, prop;
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for (prop in additional) {
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if (additional.hasOwnProperty(prop) && util.indexOf(seen, prop) < 0) {
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if (typeof target[prop] !== 'object' || !depth) {
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target[prop] = additional[prop];
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seen.push(additional[prop]);
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} else {
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util.merge(target[prop], additional[prop], depth - 1, seen);
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}
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}
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}
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return target;
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};
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/**
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* Merges prototypes from objects
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*
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* @api public
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*/
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util.mixin = function (ctor, ctor2) {
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util.merge(ctor.prototype, ctor2.prototype);
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};
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/**
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* Shortcut for prototypical and static inheritance.
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*
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* @api private
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*/
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util.inherit = function (ctor, ctor2) {
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function f() {};
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f.prototype = ctor2.prototype;
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ctor.prototype = new f;
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};
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/**
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* Checks if the given object is an Array.
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*
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* io.util.isArray([]); // true
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* io.util.isArray({}); // false
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*
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* @param Object obj
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* @api public
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*/
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util.isArray = Array.isArray || function (obj) {
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return Object.prototype.toString.call(obj) === '[object Array]';
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};
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/**
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* Intersects values of two arrays into a third
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*
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* @api public
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*/
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util.intersect = function (arr, arr2) {
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var ret = []
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, longest = arr.length > arr2.length ? arr : arr2
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, shortest = arr.length > arr2.length ? arr2 : arr;
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for (var i = 0, l = shortest.length; i < l; i++) {
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if (~util.indexOf(longest, shortest[i]))
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ret.push(shortest[i]);
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}
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return ret;
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};
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/**
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* Array indexOf compatibility.
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*
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* @see bit.ly/a5Dxa2
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* @api public
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*/
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util.indexOf = function (arr, o, i) {
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for (var j = arr.length, i = i < 0 ? i + j < 0 ? 0 : i + j : i || 0;
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i < j && arr[i] !== o; i++) {}
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return j <= i ? -1 : i;
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};
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/**
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* Converts enumerables to array.
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*
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* @api public
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*/
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util.toArray = function (enu) {
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var arr = [];
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for (var i = 0, l = enu.length; i < l; i++)
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arr.push(enu[i]);
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return arr;
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};
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/**
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* UA / engines detection namespace.
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*
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* @namespace
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*/
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util.ua = {};
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/**
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* Whether the UA supports CORS for XHR.
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*
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* @api public
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*/
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util.ua.hasCORS = 'undefined' != typeof XMLHttpRequest && (function () {
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try {
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var a = new XMLHttpRequest();
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} catch (e) {
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return false;
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}
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return a.withCredentials != undefined;
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})();
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/**
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* Detect webkit.
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*
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* @api public
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*/
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util.ua.webkit = 'undefined' != typeof navigator
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&& /webkit/i.test(navigator.userAgent);
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/**
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* Detect iPad/iPhone/iPod.
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*
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* @api public
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*/
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util.ua.iDevice = 'undefined' != typeof navigator
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&& /iPad|iPhone|iPod/i.test(navigator.userAgent);
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})('undefined' != typeof io ? io : module.exports, this);
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/**
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* socket.io
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* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
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* MIT Licensed
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*/
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(function (exports, io) {
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/**
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* Expose constructor.
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*/
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exports.EventEmitter = EventEmitter;
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/**
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* Event emitter constructor.
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*
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* @api public.
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*/
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function EventEmitter () {};
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/**
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* Adds a listener
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*
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* @api public
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*/
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EventEmitter.prototype.on = function (name, fn) {
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if (!this.$events) {
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this.$events = {};
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}
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if (!this.$events[name]) {
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this.$events[name] = fn;
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} else if (io.util.isArray(this.$events[name])) {
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this.$events[name].push(fn);
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} else {
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this.$events[name] = [this.$events[name], fn];
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}
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return this;
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};
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EventEmitter.prototype.addListener = EventEmitter.prototype.on;
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/**
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* Adds a volatile listener.
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*
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* @api public
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*/
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EventEmitter.prototype.once = function (name, fn) {
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var self = this;
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function on () {
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self.removeListener(name, on);
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fn.apply(this, arguments);
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};
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on.listener = fn;
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this.on(name, on);
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return this;
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};
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/**
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* Removes a listener.
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*
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* @api public
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*/
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EventEmitter.prototype.removeListener = function (name, fn) {
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if (this.$events && this.$events[name]) {
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var list = this.$events[name];
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if (io.util.isArray(list)) {
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var pos = -1;
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for (var i = 0, l = list.length; i < l; i++) {
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if (list[i] === fn || (list[i].listener && list[i].listener === fn)) {
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pos = i;
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break;
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}
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}
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if (pos < 0) {
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return this;
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}
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list.splice(pos, 1);
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if (!list.length) {
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delete this.$events[name];
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}
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} else if (list === fn || (list.listener && list.listener === fn)) {
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delete this.$events[name];
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}
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}
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return this;
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};
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/**
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|
* Removes all listeners for an event.
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*
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* @api public
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*/
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EventEmitter.prototype.removeAllListeners = function (name) {
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if (name === undefined) {
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this.$events = {};
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return this;
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}
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if (this.$events && this.$events[name]) {
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this.$events[name] = null;
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}
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return this;
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};
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/**
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* Gets all listeners for a certain event.
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*
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* @api publci
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*/
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EventEmitter.prototype.listeners = function (name) {
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if (!this.$events) {
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this.$events = {};
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}
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if (!this.$events[name]) {
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this.$events[name] = [];
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}
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if (!io.util.isArray(this.$events[name])) {
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this.$events[name] = [this.$events[name]];
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}
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return this.$events[name];
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};
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/**
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|
* Emits an event.
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*
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* @api public
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|
*/
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EventEmitter.prototype.emit = function (name) {
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if (!this.$events) {
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return false;
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}
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var handler = this.$events[name];
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|
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if (!handler) {
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return false;
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}
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var args = Array.prototype.slice.call(arguments, 1);
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if ('function' == typeof handler) {
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handler.apply(this, args);
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} else if (io.util.isArray(handler)) {
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var listeners = handler.slice();
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for (var i = 0, l = listeners.length; i < l; i++) {
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listeners[i].apply(this, args);
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}
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} else {
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return false;
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}
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return true;
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};
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|
})(
|
|
'undefined' != typeof io ? io : module.exports
|
|
, 'undefined' != typeof io ? io : module.parent.exports
|
|
);
|
|
|
|
/**
|
|
* socket.io
|
|
* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
|
|
* MIT Licensed
|
|
*/
|
|
|
|
/**
|
|
* Based on JSON2 (http://www.JSON.org/js.html).
|
|
*/
|
|
|
|
(function (exports, nativeJSON) {
|
|
"use strict";
|
|
|
|
// use native JSON if it's available
|
|
if (nativeJSON && nativeJSON.parse){
|
|
return exports.JSON = {
|
|
parse: nativeJSON.parse
|
|
, stringify: nativeJSON.stringify
|
|
};
|
|
}
|
|
|
|
var JSON = exports.JSON = {};
|
|
|
|
function f(n) {
|
|
// Format integers to have at least two digits.
|
|
return n < 10 ? '0' + n : n;
|
|
}
|
|
|
|
function date(d, key) {
|
|
return isFinite(d.valueOf()) ?
|
|
d.getUTCFullYear() + '-' +
|
|
f(d.getUTCMonth() + 1) + '-' +
|
|
f(d.getUTCDate()) + 'T' +
|
|
f(d.getUTCHours()) + ':' +
|
|
f(d.getUTCMinutes()) + ':' +
|
|
f(d.getUTCSeconds()) + 'Z' : null;
|
|
};
|
|
|
|
var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
|
|
escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
|
|
gap,
|
|
indent,
|
|
meta = { // table of character substitutions
|
|
'\b': '\\b',
|
|
'\t': '\\t',
|
|
'\n': '\\n',
|
|
'\f': '\\f',
|
|
'\r': '\\r',
|
|
'"' : '\\"',
|
|
'\\': '\\\\'
|
|
},
|
|
rep;
|
|
|
|
|
|
function quote(string) {
|
|
|
|
// If the string contains no control characters, no quote characters, and no
|
|
// backslash characters, then we can safely slap some quotes around it.
|
|
// Otherwise we must also replace the offending characters with safe escape
|
|
// sequences.
|
|
|
|
escapable.lastIndex = 0;
|
|
return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
|
|
var c = meta[a];
|
|
return typeof c === 'string' ? c :
|
|
'\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
|
|
}) + '"' : '"' + string + '"';
|
|
}
|
|
|
|
|
|
function str(key, holder) {
|
|
|
|
// Produce a string from holder[key].
|
|
|
|
var i, // The loop counter.
|
|
k, // The member key.
|
|
v, // The member value.
|
|
length,
|
|
mind = gap,
|
|
partial,
|
|
value = holder[key];
|
|
|
|
// If the value has a toJSON method, call it to obtain a replacement value.
|
|
|
|
if (value instanceof Date) {
|
|
value = date(key);
|
|
}
|
|
|
|
// If we were called with a replacer function, then call the replacer to
|
|
// obtain a replacement value.
|
|
|
|
if (typeof rep === 'function') {
|
|
value = rep.call(holder, key, value);
|
|
}
|
|
|
|
// What happens next depends on the value's type.
|
|
|
|
switch (typeof value) {
|
|
case 'string':
|
|
return quote(value);
|
|
|
|
case 'number':
|
|
|
|
// JSON numbers must be finite. Encode non-finite numbers as null.
|
|
|
|
return isFinite(value) ? String(value) : 'null';
|
|
|
|
case 'boolean':
|
|
case 'null':
|
|
|
|
// If the value is a boolean or null, convert it to a string. Note:
|
|
// typeof null does not produce 'null'. The case is included here in
|
|
// the remote chance that this gets fixed someday.
|
|
|
|
return String(value);
|
|
|
|
// If the type is 'object', we might be dealing with an object or an array or
|
|
// null.
|
|
|
|
case 'object':
|
|
|
|
// Due to a specification blunder in ECMAScript, typeof null is 'object',
|
|
// so watch out for that case.
|
|
|
|
if (!value) {
|
|
return 'null';
|
|
}
|
|
|
|
// Make an array to hold the partial results of stringifying this object value.
|
|
|
|
gap += indent;
|
|
partial = [];
|
|
|
|
// Is the value an array?
|
|
|
|
if (Object.prototype.toString.apply(value) === '[object Array]') {
|
|
|
|
// The value is an array. Stringify every element. Use null as a placeholder
|
|
// for non-JSON values.
|
|
|
|
length = value.length;
|
|
for (i = 0; i < length; i += 1) {
|
|
partial[i] = str(i, value) || 'null';
|
|
}
|
|
|
|
// Join all of the elements together, separated with commas, and wrap them in
|
|
// brackets.
|
|
|
|
v = partial.length === 0 ? '[]' : gap ?
|
|
'[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' :
|
|
'[' + partial.join(',') + ']';
|
|
gap = mind;
|
|
return v;
|
|
}
|
|
|
|
// If the replacer is an array, use it to select the members to be stringified.
|
|
|
|
if (rep && typeof rep === 'object') {
|
|
length = rep.length;
|
|
for (i = 0; i < length; i += 1) {
|
|
if (typeof rep[i] === 'string') {
|
|
k = rep[i];
|
|
v = str(k, value);
|
|
if (v) {
|
|
partial.push(quote(k) + (gap ? ': ' : ':') + v);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
|
|
// Otherwise, iterate through all of the keys in the object.
|
|
|
|
for (k in value) {
|
|
if (Object.prototype.hasOwnProperty.call(value, k)) {
|
|
v = str(k, value);
|
|
if (v) {
|
|
partial.push(quote(k) + (gap ? ': ' : ':') + v);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Join all of the member texts together, separated with commas,
|
|
// and wrap them in braces.
|
|
|
|
v = partial.length === 0 ? '{}' : gap ?
|
|
'{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' :
|
|
'{' + partial.join(',') + '}';
|
|
gap = mind;
|
|
return v;
|
|
}
|
|
}
|
|
|
|
// If the JSON object does not yet have a stringify method, give it one.
|
|
|
|
JSON.stringify = function (value, replacer, space) {
|
|
|
|
// The stringify method takes a value and an optional replacer, and an optional
|
|
// space parameter, and returns a JSON text. The replacer can be a function
|
|
// that can replace values, or an array of strings that will select the keys.
|
|
// A default replacer method can be provided. Use of the space parameter can
|
|
// produce text that is more easily readable.
|
|
|
|
var i;
|
|
gap = '';
|
|
indent = '';
|
|
|
|
// If the space parameter is a number, make an indent string containing that
|
|
// many spaces.
|
|
|
|
if (typeof space === 'number') {
|
|
for (i = 0; i < space; i += 1) {
|
|
indent += ' ';
|
|
}
|
|
|
|
// If the space parameter is a string, it will be used as the indent string.
|
|
|
|
} else if (typeof space === 'string') {
|
|
indent = space;
|
|
}
|
|
|
|
// If there is a replacer, it must be a function or an array.
|
|
// Otherwise, throw an error.
|
|
|
|
rep = replacer;
|
|
if (replacer && typeof replacer !== 'function' &&
|
|
(typeof replacer !== 'object' ||
|
|
typeof replacer.length !== 'number')) {
|
|
throw new Error('JSON.stringify');
|
|
}
|
|
|
|
// Make a fake root object containing our value under the key of ''.
|
|
// Return the result of stringifying the value.
|
|
|
|
return str('', {'': value});
|
|
};
|
|
|
|
// If the JSON object does not yet have a parse method, give it one.
|
|
|
|
JSON.parse = function (text, reviver) {
|
|
// The parse method takes a text and an optional reviver function, and returns
|
|
// a JavaScript value if the text is a valid JSON text.
|
|
|
|
var j;
|
|
|
|
function walk(holder, key) {
|
|
|
|
// The walk method is used to recursively walk the resulting structure so
|
|
// that modifications can be made.
|
|
|
|
var k, v, value = holder[key];
|
|
if (value && typeof value === 'object') {
|
|
for (k in value) {
|
|
if (Object.prototype.hasOwnProperty.call(value, k)) {
|
|
v = walk(value, k);
|
|
if (v !== undefined) {
|
|
value[k] = v;
|
|
} else {
|
|
delete value[k];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return reviver.call(holder, key, value);
|
|
}
|
|
|
|
|
|
// Parsing happens in four stages. In the first stage, we replace certain
|
|
// Unicode characters with escape sequences. JavaScript handles many characters
|
|
// incorrectly, either silently deleting them, or treating them as line endings.
|
|
|
|
text = String(text);
|
|
cx.lastIndex = 0;
|
|
if (cx.test(text)) {
|
|
text = text.replace(cx, function (a) {
|
|
return '\\u' +
|
|
('0000' + a.charCodeAt(0).toString(16)).slice(-4);
|
|
});
|
|
}
|
|
|
|
// In the second stage, we run the text against regular expressions that look
|
|
// for non-JSON patterns. We are especially concerned with '()' and 'new'
|
|
// because they can cause invocation, and '=' because it can cause mutation.
|
|
// But just to be safe, we want to reject all unexpected forms.
|
|
|
|
// We split the second stage into 4 regexp operations in order to work around
|
|
// crippling inefficiencies in IE's and Safari's regexp engines. First we
|
|
// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
|
|
// replace all simple value tokens with ']' characters. Third, we delete all
|
|
// open brackets that follow a colon or comma or that begin the text. Finally,
|
|
// we look to see that the remaining characters are only whitespace or ']' or
|
|
// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
|
|
|
|
if (/^[\],:{}\s]*$/
|
|
.test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
|
|
.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
|
|
.replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
|
|
|
|
// In the third stage we use the eval function to compile the text into a
|
|
// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
|
|
// in JavaScript: it can begin a block or an object literal. We wrap the text
|
|
// in parens to eliminate the ambiguity.
|
|
|
|
j = eval('(' + text + ')');
|
|
|
|
// In the optional fourth stage, we recursively walk the new structure, passing
|
|
// each name/value pair to a reviver function for possible transformation.
|
|
|
|
return typeof reviver === 'function' ?
|
|
walk({'': j}, '') : j;
|
|
}
|
|
|
|
// If the text is not JSON parseable, then a SyntaxError is thrown.
|
|
|
|
throw new SyntaxError('JSON.parse');
|
|
};
|
|
|
|
})(
|
|
'undefined' != typeof io ? io : module.exports
|
|
, typeof JSON !== 'undefined' ? JSON : undefined
|
|
);
|
|
|
|
/**
|
|
* socket.io
|
|
* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
|
|
* MIT Licensed
|
|
*/
|
|
|
|
(function (exports, io) {
|
|
|
|
/**
|
|
* Parser namespace.
|
|
*
|
|
* @namespace
|
|
*/
|
|
|
|
var parser = exports.parser = {};
|
|
|
|
/**
|
|
* Packet types.
|
|
*/
|
|
|
|
var packets = parser.packets = [
|
|
'disconnect'
|
|
, 'connect'
|
|
, 'heartbeat'
|
|
, 'message'
|
|
, 'json'
|
|
, 'event'
|
|
, 'ack'
|
|
, 'error'
|
|
, 'noop'
|
|
];
|
|
|
|
/**
|
|
* Errors reasons.
|
|
*/
|
|
|
|
var reasons = parser.reasons = [
|
|
'transport not supported'
|
|
, 'client not handshaken'
|
|
, 'unauthorized'
|
|
];
|
|
|
|
/**
|
|
* Errors advice.
|
|
*/
|
|
|
|
var advice = parser.advice = [
|
|
'reconnect'
|
|
];
|
|
|
|
/**
|
|
* Shortcuts.
|
|
*/
|
|
|
|
var JSON = io.JSON
|
|
, indexOf = io.util.indexOf;
|
|
|
|
/**
|
|
* Encodes a packet.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
parser.encodePacket = function (packet) {
|
|
var type = indexOf(packets, packet.type)
|
|
, id = packet.id || ''
|
|
, endpoint = packet.endpoint || ''
|
|
, ack = packet.ack
|
|
, data = null;
|
|
|
|
switch (packet.type) {
|
|
case 'error':
|
|
var reason = packet.reason ? indexOf(reasons, packet.reason) : ''
|
|
, adv = packet.advice ? indexOf(advice, packet.advice) : '';
|
|
|
|
if (reason !== '' || adv !== '')
|
|
data = reason + (adv !== '' ? ('+' + adv) : '');
|
|
|
|
break;
|
|
|
|
case 'message':
|
|
if (packet.data !== '')
|
|
data = packet.data;
|
|
break;
|
|
|
|
case 'event':
|
|
var ev = { name: packet.name };
|
|
|
|
if (packet.args && packet.args.length) {
|
|
ev.args = packet.args;
|
|
}
|
|
|
|
data = JSON.stringify(ev);
|
|
break;
|
|
|
|
case 'json':
|
|
data = JSON.stringify(packet.data);
|
|
break;
|
|
|
|
case 'connect':
|
|
if (packet.qs)
|
|
data = packet.qs;
|
|
break;
|
|
|
|
case 'ack':
|
|
data = packet.ackId
|
|
+ (packet.args && packet.args.length
|
|
? '+' + JSON.stringify(packet.args) : '');
|
|
break;
|
|
}
|
|
|
|
// construct packet with required fragments
|
|
var encoded = [
|
|
type
|
|
, id + (ack == 'data' ? '+' : '')
|
|
, endpoint
|
|
];
|
|
|
|
// data fragment is optional
|
|
if (data !== null && data !== undefined)
|
|
encoded.push(data);
|
|
|
|
return encoded.join(':');
|
|
};
|
|
|
|
/**
|
|
* Encodes multiple messages (payload).
|
|
*
|
|
* @param {Array} messages
|
|
* @api private
|
|
*/
|
|
|
|
parser.encodePayload = function (packets) {
|
|
var decoded = '';
|
|
|
|
if (packets.length == 1)
|
|
return packets[0];
|
|
|
|
for (var i = 0, l = packets.length; i < l; i++) {
|
|
var packet = packets[i];
|
|
decoded += '\ufffd' + packet.length + '\ufffd' + packets[i];
|
|
}
|
|
|
|
return decoded;
|
|
};
|
|
|
|
/**
|
|
* Decodes a packet
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
var regexp = /([^:]+):([0-9]+)?(\+)?:([^:]+)?:?([\s\S]*)?/;
|
|
|
|
parser.decodePacket = function (data) {
|
|
var pieces = data.match(regexp);
|
|
|
|
if (!pieces) return {};
|
|
|
|
var id = pieces[2] || ''
|
|
, data = pieces[5] || ''
|
|
, packet = {
|
|
type: packets[pieces[1]]
|
|
, endpoint: pieces[4] || ''
|
|
};
|
|
|
|
// whether we need to acknowledge the packet
|
|
if (id) {
|
|
packet.id = id;
|
|
if (pieces[3])
|
|
packet.ack = 'data';
|
|
else
|
|
packet.ack = true;
|
|
}
|
|
|
|
// handle different packet types
|
|
switch (packet.type) {
|
|
case 'error':
|
|
var pieces = data.split('+');
|
|
packet.reason = reasons[pieces[0]] || '';
|
|
packet.advice = advice[pieces[1]] || '';
|
|
break;
|
|
|
|
case 'message':
|
|
packet.data = data || '';
|
|
break;
|
|
|
|
case 'event':
|
|
try {
|
|
var opts = JSON.parse(data);
|
|
packet.name = opts.name;
|
|
packet.args = opts.args;
|
|
} catch (e) { }
|
|
|
|
packet.args = packet.args || [];
|
|
break;
|
|
|
|
case 'json':
|
|
try {
|
|
packet.data = JSON.parse(data);
|
|
} catch (e) { }
|
|
break;
|
|
|
|
case 'connect':
|
|
packet.qs = data || '';
|
|
break;
|
|
|
|
case 'ack':
|
|
var pieces = data.match(/^([0-9]+)(\+)?(.*)/);
|
|
if (pieces) {
|
|
packet.ackId = pieces[1];
|
|
packet.args = [];
|
|
|
|
if (pieces[3]) {
|
|
try {
|
|
packet.args = pieces[3] ? JSON.parse(pieces[3]) : [];
|
|
} catch (e) { }
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'disconnect':
|
|
case 'heartbeat':
|
|
break;
|
|
};
|
|
|
|
return packet;
|
|
};
|
|
|
|
/**
|
|
* Decodes data payload. Detects multiple messages
|
|
*
|
|
* @return {Array} messages
|
|
* @api public
|
|
*/
|
|
|
|
parser.decodePayload = function (data) {
|
|
// IE doesn't like data[i] for unicode chars, charAt works fine
|
|
if (data.charAt(0) == '\ufffd') {
|
|
var ret = [];
|
|
|
|
for (var i = 1, length = ''; i < data.length; i++) {
|
|
if (data.charAt(i) == '\ufffd') {
|
|
ret.push(parser.decodePacket(data.substr(i + 1).substr(0, length)));
|
|
i += Number(length) + 1;
|
|
length = '';
|
|
} else {
|
|
length += data.charAt(i);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
} else {
|
|
return [parser.decodePacket(data)];
|
|
}
|
|
};
|
|
|
|
})(
|
|
'undefined' != typeof io ? io : module.exports
|
|
, 'undefined' != typeof io ? io : module.parent.exports
|
|
);
|
|
/**
|
|
* socket.io
|
|
* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
|
|
* MIT Licensed
|
|
*/
|
|
|
|
(function (exports, io) {
|
|
|
|
/**
|
|
* Expose constructor.
|
|
*/
|
|
|
|
exports.Transport = Transport;
|
|
|
|
/**
|
|
* This is the transport template for all supported transport methods.
|
|
*
|
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* @constructor
|
|
* @api public
|
|
*/
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|
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function Transport (socket, sessid) {
|
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this.socket = socket;
|
|
this.sessid = sessid;
|
|
};
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|
|
|
/**
|
|
* Apply EventEmitter mixin.
|
|
*/
|
|
|
|
io.util.mixin(Transport, io.EventEmitter);
|
|
|
|
|
|
/**
|
|
* Indicates whether heartbeats is enabled for this transport
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.heartbeats = function () {
|
|
return true;
|
|
};
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|
|
|
/**
|
|
* Handles the response from the server. When a new response is received
|
|
* it will automatically update the timeout, decode the message and
|
|
* forwards the response to the onMessage function for further processing.
|
|
*
|
|
* @param {String} data Response from the server.
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.onData = function (data) {
|
|
this.clearCloseTimeout();
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|
|
|
// If the connection in currently open (or in a reopening state) reset the close
|
|
// timeout since we have just received data. This check is necessary so
|
|
// that we don't reset the timeout on an explicitly disconnected connection.
|
|
if (this.socket.connected || this.socket.connecting || this.socket.reconnecting) {
|
|
this.setCloseTimeout();
|
|
}
|
|
|
|
if (data !== '') {
|
|
// todo: we should only do decodePayload for xhr transports
|
|
var msgs = io.parser.decodePayload(data);
|
|
|
|
if (msgs && msgs.length) {
|
|
for (var i = 0, l = msgs.length; i < l; i++) {
|
|
this.onPacket(msgs[i]);
|
|
}
|
|
}
|
|
}
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|
|
|
return this;
|
|
};
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|
|
|
/**
|
|
* Handles packets.
|
|
*
|
|
* @api private
|
|
*/
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|
|
|
Transport.prototype.onPacket = function (packet) {
|
|
this.socket.setHeartbeatTimeout();
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|
|
|
if (packet.type == 'heartbeat') {
|
|
return this.onHeartbeat();
|
|
}
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|
|
|
if (packet.type == 'connect' && packet.endpoint == '') {
|
|
this.onConnect();
|
|
}
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|
|
|
if (packet.type == 'error' && packet.advice == 'reconnect') {
|
|
this.isOpen = false;
|
|
}
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|
|
|
this.socket.onPacket(packet);
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|
|
|
return this;
|
|
};
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|
|
|
/**
|
|
* Sets close timeout
|
|
*
|
|
* @api private
|
|
*/
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Transport.prototype.setCloseTimeout = function () {
|
|
if (!this.closeTimeout) {
|
|
var self = this;
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this.closeTimeout = setTimeout(function () {
|
|
self.onDisconnect();
|
|
}, this.socket.closeTimeout);
|
|
}
|
|
};
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|
|
|
/**
|
|
* Called when transport disconnects.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.onDisconnect = function () {
|
|
if (this.isOpen) this.close();
|
|
this.clearTimeouts();
|
|
this.socket.onDisconnect();
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Called when transport connects
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.onConnect = function () {
|
|
this.socket.onConnect();
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Clears close timeout
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.clearCloseTimeout = function () {
|
|
if (this.closeTimeout) {
|
|
clearTimeout(this.closeTimeout);
|
|
this.closeTimeout = null;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Clear timeouts
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.clearTimeouts = function () {
|
|
this.clearCloseTimeout();
|
|
|
|
if (this.reopenTimeout) {
|
|
clearTimeout(this.reopenTimeout);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Sends a packet
|
|
*
|
|
* @param {Object} packet object.
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.packet = function (packet) {
|
|
this.send(io.parser.encodePacket(packet));
|
|
};
|
|
|
|
/**
|
|
* Send the received heartbeat message back to server. So the server
|
|
* knows we are still connected.
|
|
*
|
|
* @param {String} heartbeat Heartbeat response from the server.
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.onHeartbeat = function (heartbeat) {
|
|
this.packet({ type: 'heartbeat' });
|
|
};
|
|
|
|
/**
|
|
* Called when the transport opens.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.onOpen = function () {
|
|
this.isOpen = true;
|
|
this.clearCloseTimeout();
|
|
this.socket.onOpen();
|
|
};
|
|
|
|
/**
|
|
* Notifies the base when the connection with the Socket.IO server
|
|
* has been disconnected.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.onClose = function () {
|
|
var self = this;
|
|
|
|
/* FIXME: reopen delay causing a infinit loop
|
|
this.reopenTimeout = setTimeout(function () {
|
|
self.open();
|
|
}, this.socket.options['reopen delay']);*/
|
|
|
|
this.isOpen = false;
|
|
this.socket.onClose();
|
|
this.onDisconnect();
|
|
};
|
|
|
|
/**
|
|
* Generates a connection url based on the Socket.IO URL Protocol.
|
|
* See <https://github.com/learnboost/socket.io-node/> for more details.
|
|
*
|
|
* @returns {String} Connection url
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.prepareUrl = function () {
|
|
var options = this.socket.options;
|
|
|
|
return this.scheme() + '://'
|
|
+ options.host + ':' + options.port + '/'
|
|
+ options.resource + '/' + io.protocol
|
|
+ '/' + this.name + '/' + this.sessid;
|
|
};
|
|
|
|
/**
|
|
* Checks if the transport is ready to start a connection.
|
|
*
|
|
* @param {Socket} socket The socket instance that needs a transport
|
|
* @param {Function} fn The callback
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.ready = function (socket, fn) {
|
|
fn.call(this);
|
|
};
|
|
})(
|
|
'undefined' != typeof io ? io : module.exports
|
|
, 'undefined' != typeof io ? io : module.parent.exports
|
|
);
|
|
/**
|
|
* socket.io
|
|
* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
|
|
* MIT Licensed
|
|
*/
|
|
|
|
(function (exports, io, global) {
|
|
|
|
/**
|
|
* Expose constructor.
|
|
*/
|
|
|
|
exports.Socket = Socket;
|
|
|
|
/**
|
|
* Create a new `Socket.IO client` which can establish a persistent
|
|
* connection with a Socket.IO enabled server.
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
function Socket (options) {
|
|
this.options = {
|
|
port: 80
|
|
, secure: false
|
|
, document: 'document' in global ? document : false
|
|
, resource: 'socket.io'
|
|
, transports: io.transports
|
|
, 'connect timeout': 10000
|
|
, 'try multiple transports': true
|
|
, 'reconnect': true
|
|
, 'reconnection delay': 500
|
|
, 'reconnection limit': Infinity
|
|
, 'reopen delay': 3000
|
|
, 'max reconnection attempts': 10
|
|
, 'sync disconnect on unload': false
|
|
, 'auto connect': true
|
|
, 'flash policy port': 10843
|
|
, 'manualFlush': false
|
|
};
|
|
|
|
io.util.merge(this.options, options);
|
|
|
|
this.connected = false;
|
|
this.open = false;
|
|
this.connecting = false;
|
|
this.reconnecting = false;
|
|
this.namespaces = {};
|
|
this.buffer = [];
|
|
this.doBuffer = false;
|
|
|
|
if (this.options['sync disconnect on unload'] &&
|
|
(!this.isXDomain() || io.util.ua.hasCORS)) {
|
|
var self = this;
|
|
io.util.on(global, 'beforeunload', function () {
|
|
self.disconnectSync();
|
|
}, false);
|
|
}
|
|
|
|
if (this.options['auto connect']) {
|
|
this.connect();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Apply EventEmitter mixin.
|
|
*/
|
|
|
|
io.util.mixin(Socket, io.EventEmitter);
|
|
|
|
/**
|
|
* Returns a namespace listener/emitter for this socket
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
Socket.prototype.of = function (name) {
|
|
if (!this.namespaces[name]) {
|
|
this.namespaces[name] = new io.SocketNamespace(this, name);
|
|
|
|
if (name !== '') {
|
|
this.namespaces[name].packet({ type: 'connect' });
|
|
}
|
|
}
|
|
|
|
return this.namespaces[name];
|
|
};
|
|
|
|
/**
|
|
* Emits the given event to the Socket and all namespaces
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Socket.prototype.publish = function () {
|
|
this.emit.apply(this, arguments);
|
|
|
|
var nsp;
|
|
|
|
for (var i in this.namespaces) {
|
|
if (this.namespaces.hasOwnProperty(i)) {
|
|
nsp = this.of(i);
|
|
nsp.$emit.apply(nsp, arguments);
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Performs the handshake
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
function empty () { };
|
|
|
|
Socket.prototype.handshake = function (fn) {
|
|
var self = this
|
|
, options = this.options;
|
|
|
|
function complete (data) {
|
|
if (data instanceof Error) {
|
|
self.connecting = false;
|
|
self.onError(data.message);
|
|
} else {
|
|
fn.apply(null, data.split(':'));
|
|
}
|
|
};
|
|
|
|
var url = [
|
|
'http' + (options.secure ? 's' : '') + ':/'
|
|
, options.host + ':' + options.port
|
|
, options.resource
|
|
, io.protocol
|
|
, io.util.query(this.options.query, 't=' + +new Date)
|
|
].join('/');
|
|
|
|
if (this.isXDomain() && !io.util.ua.hasCORS) {
|
|
var insertAt = document.getElementsByTagName('script')[0]
|
|
, script = document.createElement('script');
|
|
|
|
script.src = url + '&jsonp=' + io.j.length;
|
|
insertAt.parentNode.insertBefore(script, insertAt);
|
|
|
|
io.j.push(function (data) {
|
|
complete(data);
|
|
script.parentNode.removeChild(script);
|
|
});
|
|
} else {
|
|
var xhr = io.util.request();
|
|
|
|
xhr.open('GET', url, true);
|
|
if (this.isXDomain()) {
|
|
xhr.withCredentials = true;
|
|
}
|
|
xhr.onreadystatechange = function () {
|
|
if (xhr.readyState == 4) {
|
|
xhr.onreadystatechange = empty;
|
|
|
|
if (xhr.status == 200) {
|
|
complete(xhr.responseText);
|
|
} else if (xhr.status == 403) {
|
|
self.onError(xhr.responseText);
|
|
} else {
|
|
self.connecting = false;
|
|
!self.reconnecting && self.onError(xhr.responseText);
|
|
}
|
|
}
|
|
};
|
|
xhr.send(null);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Find an available transport based on the options supplied in the constructor.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Socket.prototype.getTransport = function (override) {
|
|
var transports = override || this.transports, match;
|
|
|
|
for (var i = 0, transport; transport = transports[i]; i++) {
|
|
if (io.Transport[transport]
|
|
&& io.Transport[transport].check(this)
|
|
&& (!this.isXDomain() || io.Transport[transport].xdomainCheck(this))) {
|
|
return new io.Transport[transport](this, this.sessionid);
|
|
}
|
|
}
|
|
|
|
return null;
|
|
};
|
|
|
|
/**
|
|
* Connects to the server.
|
|
*
|
|
* @param {Function} [fn] Callback.
|
|
* @returns {io.Socket}
|
|
* @api public
|
|
*/
|
|
|
|
Socket.prototype.connect = function (fn) {
|
|
if (this.connecting) {
|
|
return this;
|
|
}
|
|
|
|
var self = this;
|
|
self.connecting = true;
|
|
|
|
this.handshake(function (sid, heartbeat, close, transports) {
|
|
self.sessionid = sid;
|
|
self.closeTimeout = close * 1000;
|
|
self.heartbeatTimeout = heartbeat * 1000;
|
|
if(!self.transports)
|
|
self.transports = self.origTransports = (transports ? io.util.intersect(
|
|
transports.split(',')
|
|
, self.options.transports
|
|
) : self.options.transports);
|
|
|
|
self.setHeartbeatTimeout();
|
|
|
|
function connect (transports){
|
|
if (self.transport) self.transport.clearTimeouts();
|
|
|
|
self.transport = self.getTransport(transports);
|
|
if (!self.transport) return self.publish('connect_failed');
|
|
|
|
// once the transport is ready
|
|
self.transport.ready(self, function () {
|
|
self.connecting = true;
|
|
self.publish('connecting', self.transport.name);
|
|
self.transport.open();
|
|
|
|
if (self.options['connect timeout']) {
|
|
self.connectTimeoutTimer = setTimeout(function () {
|
|
if (!self.connected) {
|
|
self.connecting = false;
|
|
|
|
if (self.options['try multiple transports']) {
|
|
var remaining = self.transports;
|
|
|
|
while (remaining.length > 0 && remaining.splice(0,1)[0] !=
|
|
self.transport.name) {}
|
|
|
|
if (remaining.length){
|
|
connect(remaining);
|
|
} else {
|
|
self.publish('connect_failed');
|
|
}
|
|
}
|
|
}
|
|
}, self.options['connect timeout']);
|
|
}
|
|
});
|
|
}
|
|
|
|
connect(self.transports);
|
|
|
|
self.once('connect', function (){
|
|
clearTimeout(self.connectTimeoutTimer);
|
|
|
|
fn && typeof fn == 'function' && fn();
|
|
});
|
|
});
|
|
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Clears and sets a new heartbeat timeout using the value given by the
|
|
* server during the handshake.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Socket.prototype.setHeartbeatTimeout = function () {
|
|
clearTimeout(this.heartbeatTimeoutTimer);
|
|
if(this.transport && !this.transport.heartbeats()) return;
|
|
|
|
var self = this;
|
|
this.heartbeatTimeoutTimer = setTimeout(function () {
|
|
self.transport.onClose();
|
|
}, this.heartbeatTimeout);
|
|
};
|
|
|
|
/**
|
|
* Sends a message.
|
|
*
|
|
* @param {Object} data packet.
|
|
* @returns {io.Socket}
|
|
* @api public
|
|
*/
|
|
|
|
Socket.prototype.packet = function (data) {
|
|
if (this.connected && !this.doBuffer) {
|
|
this.transport.packet(data);
|
|
} else {
|
|
this.buffer.push(data);
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Sets buffer state
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Socket.prototype.setBuffer = function (v) {
|
|
this.doBuffer = v;
|
|
|
|
if (!v && this.connected && this.buffer.length) {
|
|
if (!this.options['manualFlush']) {
|
|
this.flushBuffer();
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Flushes the buffer data over the wire.
|
|
* To be invoked manually when 'manualFlush' is set to true.
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
Socket.prototype.flushBuffer = function() {
|
|
this.transport.payload(this.buffer);
|
|
this.buffer = [];
|
|
};
|
|
|
|
|
|
/**
|
|
* Disconnect the established connect.
|
|
*
|
|
* @returns {io.Socket}
|
|
* @api public
|
|
*/
|
|
|
|
Socket.prototype.disconnect = function () {
|
|
if (this.connected || this.connecting) {
|
|
if (this.open) {
|
|
this.of('').packet({ type: 'disconnect' });
|
|
}
|
|
|
|
// handle disconnection immediately
|
|
this.onDisconnect('booted');
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Disconnects the socket with a sync XHR.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Socket.prototype.disconnectSync = function () {
|
|
// ensure disconnection
|
|
var xhr = io.util.request();
|
|
var uri = [
|
|
'http' + (this.options.secure ? 's' : '') + ':/'
|
|
, this.options.host + ':' + this.options.port
|
|
, this.options.resource
|
|
, io.protocol
|
|
, ''
|
|
, this.sessionid
|
|
].join('/') + '/?disconnect=1';
|
|
|
|
xhr.open('GET', uri, false);
|
|
xhr.send(null);
|
|
|
|
// handle disconnection immediately
|
|
this.onDisconnect('booted');
|
|
};
|
|
|
|
/**
|
|
* Check if we need to use cross domain enabled transports. Cross domain would
|
|
* be a different port or different domain name.
|
|
*
|
|
* @returns {Boolean}
|
|
* @api private
|
|
*/
|
|
|
|
Socket.prototype.isXDomain = function () {
|
|
|
|
var port = global.location.port ||
|
|
('https:' == global.location.protocol ? 443 : 80);
|
|
|
|
return this.options.host !== global.location.hostname
|
|
|| this.options.port != port;
|
|
};
|
|
|
|
/**
|
|
* Called upon handshake.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Socket.prototype.onConnect = function () {
|
|
if (!this.connected) {
|
|
this.connected = true;
|
|
this.connecting = false;
|
|
if (!this.doBuffer) {
|
|
// make sure to flush the buffer
|
|
this.setBuffer(false);
|
|
}
|
|
this.emit('connect');
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Called when the transport opens
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Socket.prototype.onOpen = function () {
|
|
this.open = true;
|
|
};
|
|
|
|
/**
|
|
* Called when the transport closes.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Socket.prototype.onClose = function () {
|
|
this.open = false;
|
|
clearTimeout(this.heartbeatTimeoutTimer);
|
|
};
|
|
|
|
/**
|
|
* Called when the transport first opens a connection
|
|
*
|
|
* @param text
|
|
*/
|
|
|
|
Socket.prototype.onPacket = function (packet) {
|
|
this.of(packet.endpoint).onPacket(packet);
|
|
};
|
|
|
|
/**
|
|
* Handles an error.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Socket.prototype.onError = function (err) {
|
|
if (err && err.advice) {
|
|
if (err.advice === 'reconnect' && (this.connected || this.connecting)) {
|
|
this.disconnect();
|
|
if (this.options.reconnect) {
|
|
this.reconnect();
|
|
}
|
|
}
|
|
}
|
|
|
|
this.publish('error', err && err.reason ? err.reason : err);
|
|
};
|
|
|
|
/**
|
|
* Called when the transport disconnects.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Socket.prototype.onDisconnect = function (reason) {
|
|
var wasConnected = this.connected
|
|
, wasConnecting = this.connecting;
|
|
|
|
this.connected = false;
|
|
this.connecting = false;
|
|
this.open = false;
|
|
|
|
if (wasConnected || wasConnecting) {
|
|
this.transport.close();
|
|
this.transport.clearTimeouts();
|
|
if (wasConnected) {
|
|
this.publish('disconnect', reason);
|
|
|
|
if ('booted' != reason && this.options.reconnect && !this.reconnecting) {
|
|
this.reconnect();
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Called upon reconnection.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Socket.prototype.reconnect = function () {
|
|
this.reconnecting = true;
|
|
this.reconnectionAttempts = 0;
|
|
this.reconnectionDelay = this.options['reconnection delay'];
|
|
|
|
var self = this
|
|
, maxAttempts = this.options['max reconnection attempts']
|
|
, tryMultiple = this.options['try multiple transports']
|
|
, limit = this.options['reconnection limit'];
|
|
|
|
function reset () {
|
|
if (self.connected) {
|
|
for (var i in self.namespaces) {
|
|
if (self.namespaces.hasOwnProperty(i) && '' !== i) {
|
|
self.namespaces[i].packet({ type: 'connect' });
|
|
}
|
|
}
|
|
self.publish('reconnect', self.transport.name, self.reconnectionAttempts);
|
|
}
|
|
|
|
clearTimeout(self.reconnectionTimer);
|
|
|
|
self.removeListener('connect_failed', maybeReconnect);
|
|
self.removeListener('connect', maybeReconnect);
|
|
|
|
self.reconnecting = false;
|
|
|
|
delete self.reconnectionAttempts;
|
|
delete self.reconnectionDelay;
|
|
delete self.reconnectionTimer;
|
|
delete self.redoTransports;
|
|
|
|
self.options['try multiple transports'] = tryMultiple;
|
|
};
|
|
|
|
function maybeReconnect () {
|
|
if (!self.reconnecting) {
|
|
return;
|
|
}
|
|
|
|
if (self.connected) {
|
|
return reset();
|
|
};
|
|
|
|
if (self.connecting && self.reconnecting) {
|
|
return self.reconnectionTimer = setTimeout(maybeReconnect, 1000);
|
|
}
|
|
|
|
if (self.reconnectionAttempts++ >= maxAttempts) {
|
|
if (!self.redoTransports) {
|
|
self.on('connect_failed', maybeReconnect);
|
|
self.options['try multiple transports'] = true;
|
|
self.transports = self.origTransports;
|
|
self.transport = self.getTransport();
|
|
self.redoTransports = true;
|
|
self.connect();
|
|
} else {
|
|
self.publish('reconnect_failed');
|
|
reset();
|
|
}
|
|
} else {
|
|
if (self.reconnectionDelay < limit) {
|
|
self.reconnectionDelay *= 2; // exponential back off
|
|
}
|
|
|
|
self.connect();
|
|
self.publish('reconnecting', self.reconnectionDelay, self.reconnectionAttempts);
|
|
self.reconnectionTimer = setTimeout(maybeReconnect, self.reconnectionDelay);
|
|
}
|
|
};
|
|
|
|
this.options['try multiple transports'] = false;
|
|
this.reconnectionTimer = setTimeout(maybeReconnect, this.reconnectionDelay);
|
|
|
|
this.on('connect', maybeReconnect);
|
|
};
|
|
|
|
})(
|
|
'undefined' != typeof io ? io : module.exports
|
|
, 'undefined' != typeof io ? io : module.parent.exports
|
|
, this
|
|
);
|
|
/**
|
|
* socket.io
|
|
* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
|
|
* MIT Licensed
|
|
*/
|
|
|
|
(function (exports, io) {
|
|
|
|
/**
|
|
* Expose constructor.
|
|
*/
|
|
|
|
exports.SocketNamespace = SocketNamespace;
|
|
|
|
/**
|
|
* Socket namespace constructor.
|
|
*
|
|
* @constructor
|
|
* @api public
|
|
*/
|
|
|
|
function SocketNamespace (socket, name) {
|
|
this.socket = socket;
|
|
this.name = name || '';
|
|
this.flags = {};
|
|
this.json = new Flag(this, 'json');
|
|
this.ackPackets = 0;
|
|
this.acks = {};
|
|
};
|
|
|
|
/**
|
|
* Apply EventEmitter mixin.
|
|
*/
|
|
|
|
io.util.mixin(SocketNamespace, io.EventEmitter);
|
|
|
|
/**
|
|
* Copies emit since we override it
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
SocketNamespace.prototype.$emit = io.EventEmitter.prototype.emit;
|
|
|
|
/**
|
|
* Creates a new namespace, by proxying the request to the socket. This
|
|
* allows us to use the synax as we do on the server.
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
SocketNamespace.prototype.of = function () {
|
|
return this.socket.of.apply(this.socket, arguments);
|
|
};
|
|
|
|
/**
|
|
* Sends a packet.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
SocketNamespace.prototype.packet = function (packet) {
|
|
packet.endpoint = this.name;
|
|
this.socket.packet(packet);
|
|
this.flags = {};
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Sends a message
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
SocketNamespace.prototype.send = function (data, fn) {
|
|
var packet = {
|
|
type: this.flags.json ? 'json' : 'message'
|
|
, data: data
|
|
};
|
|
|
|
if ('function' == typeof fn) {
|
|
packet.id = ++this.ackPackets;
|
|
packet.ack = true;
|
|
this.acks[packet.id] = fn;
|
|
}
|
|
|
|
return this.packet(packet);
|
|
};
|
|
|
|
/**
|
|
* Emits an event
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
SocketNamespace.prototype.emit = function (name) {
|
|
var args = Array.prototype.slice.call(arguments, 1)
|
|
, lastArg = args[args.length - 1]
|
|
, packet = {
|
|
type: 'event'
|
|
, name: name
|
|
};
|
|
|
|
if ('function' == typeof lastArg) {
|
|
packet.id = ++this.ackPackets;
|
|
packet.ack = 'data';
|
|
this.acks[packet.id] = lastArg;
|
|
args = args.slice(0, args.length - 1);
|
|
}
|
|
|
|
packet.args = args;
|
|
|
|
return this.packet(packet);
|
|
};
|
|
|
|
/**
|
|
* Disconnects the namespace
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
SocketNamespace.prototype.disconnect = function () {
|
|
if (this.name === '') {
|
|
this.socket.disconnect();
|
|
} else {
|
|
this.packet({ type: 'disconnect' });
|
|
this.$emit('disconnect');
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Handles a packet
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
SocketNamespace.prototype.onPacket = function (packet) {
|
|
var self = this;
|
|
|
|
function ack () {
|
|
self.packet({
|
|
type: 'ack'
|
|
, args: io.util.toArray(arguments)
|
|
, ackId: packet.id
|
|
});
|
|
};
|
|
|
|
switch (packet.type) {
|
|
case 'connect':
|
|
this.$emit('connect');
|
|
break;
|
|
|
|
case 'disconnect':
|
|
if (this.name === '') {
|
|
this.socket.onDisconnect(packet.reason || 'booted');
|
|
} else {
|
|
this.$emit('disconnect', packet.reason);
|
|
}
|
|
break;
|
|
|
|
case 'message':
|
|
case 'json':
|
|
var params = ['message', packet.data];
|
|
|
|
if (packet.ack == 'data') {
|
|
params.push(ack);
|
|
} else if (packet.ack) {
|
|
this.packet({ type: 'ack', ackId: packet.id });
|
|
}
|
|
|
|
this.$emit.apply(this, params);
|
|
break;
|
|
|
|
case 'event':
|
|
var params = [packet.name].concat(packet.args);
|
|
|
|
if (packet.ack == 'data')
|
|
params.push(ack);
|
|
|
|
this.$emit.apply(this, params);
|
|
break;
|
|
|
|
case 'ack':
|
|
if (this.acks[packet.ackId]) {
|
|
this.acks[packet.ackId].apply(this, packet.args);
|
|
delete this.acks[packet.ackId];
|
|
}
|
|
break;
|
|
|
|
case 'error':
|
|
if (packet.advice){
|
|
this.socket.onError(packet);
|
|
} else {
|
|
if (packet.reason == 'unauthorized') {
|
|
this.$emit('connect_failed', packet.reason);
|
|
} else {
|
|
this.$emit('error', packet.reason);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Flag interface.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
function Flag (nsp, name) {
|
|
this.namespace = nsp;
|
|
this.name = name;
|
|
};
|
|
|
|
/**
|
|
* Send a message
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
Flag.prototype.send = function () {
|
|
this.namespace.flags[this.name] = true;
|
|
this.namespace.send.apply(this.namespace, arguments);
|
|
};
|
|
|
|
/**
|
|
* Emit an event
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
Flag.prototype.emit = function () {
|
|
this.namespace.flags[this.name] = true;
|
|
this.namespace.emit.apply(this.namespace, arguments);
|
|
};
|
|
|
|
})(
|
|
'undefined' != typeof io ? io : module.exports
|
|
, 'undefined' != typeof io ? io : module.parent.exports
|
|
);
|
|
|
|
/**
|
|
* socket.io
|
|
* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
|
|
* MIT Licensed
|
|
*/
|
|
|
|
(function (exports, io, global) {
|
|
|
|
/**
|
|
* Expose constructor.
|
|
*/
|
|
|
|
exports.websocket = WS;
|
|
|
|
/**
|
|
* The WebSocket transport uses the HTML5 WebSocket API to establish an
|
|
* persistent connection with the Socket.IO server. This transport will also
|
|
* be inherited by the FlashSocket fallback as it provides a API compatible
|
|
* polyfill for the WebSockets.
|
|
*
|
|
* @constructor
|
|
* @extends {io.Transport}
|
|
* @api public
|
|
*/
|
|
|
|
function WS (socket) {
|
|
io.Transport.apply(this, arguments);
|
|
};
|
|
|
|
/**
|
|
* Inherits from Transport.
|
|
*/
|
|
|
|
io.util.inherit(WS, io.Transport);
|
|
|
|
/**
|
|
* Transport name
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
WS.prototype.name = 'websocket';
|
|
|
|
/**
|
|
* Initializes a new `WebSocket` connection with the Socket.IO server. We attach
|
|
* all the appropriate listeners to handle the responses from the server.
|
|
*
|
|
* @returns {Transport}
|
|
* @api public
|
|
*/
|
|
|
|
WS.prototype.open = function () {
|
|
var query = io.util.query(this.socket.options.query)
|
|
, self = this
|
|
, Socket
|
|
|
|
|
|
if (!Socket) {
|
|
Socket = global.MozWebSocket || global.WebSocket;
|
|
}
|
|
|
|
this.websocket = new Socket(this.prepareUrl() + query);
|
|
|
|
this.websocket.onopen = function () {
|
|
self.onOpen();
|
|
self.socket.setBuffer(false);
|
|
};
|
|
this.websocket.onmessage = function (ev) {
|
|
self.onData(ev.data);
|
|
};
|
|
this.websocket.onclose = function () {
|
|
self.onClose();
|
|
self.socket.setBuffer(true);
|
|
};
|
|
this.websocket.onerror = function (e) {
|
|
self.onError(e);
|
|
};
|
|
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Send a message to the Socket.IO server. The message will automatically be
|
|
* encoded in the correct message format.
|
|
*
|
|
* @returns {Transport}
|
|
* @api public
|
|
*/
|
|
|
|
// Do to a bug in the current IDevices browser, we need to wrap the send in a
|
|
// setTimeout, when they resume from sleeping the browser will crash if
|
|
// we don't allow the browser time to detect the socket has been closed
|
|
if (io.util.ua.iDevice) {
|
|
WS.prototype.send = function (data) {
|
|
var self = this;
|
|
setTimeout(function() {
|
|
self.websocket.send(data);
|
|
},0);
|
|
return this;
|
|
};
|
|
} else {
|
|
WS.prototype.send = function (data) {
|
|
this.websocket.send(data);
|
|
return this;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Payload
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
WS.prototype.payload = function (arr) {
|
|
for (var i = 0, l = arr.length; i < l; i++) {
|
|
this.packet(arr[i]);
|
|
}
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Disconnect the established `WebSocket` connection.
|
|
*
|
|
* @returns {Transport}
|
|
* @api public
|
|
*/
|
|
|
|
WS.prototype.close = function () {
|
|
this.websocket.close();
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Handle the errors that `WebSocket` might be giving when we
|
|
* are attempting to connect or send messages.
|
|
*
|
|
* @param {Error} e The error.
|
|
* @api private
|
|
*/
|
|
|
|
WS.prototype.onError = function (e) {
|
|
this.socket.onError(e);
|
|
};
|
|
|
|
/**
|
|
* Returns the appropriate scheme for the URI generation.
|
|
*
|
|
* @api private
|
|
*/
|
|
WS.prototype.scheme = function () {
|
|
return this.socket.options.secure ? 'wss' : 'ws';
|
|
};
|
|
|
|
/**
|
|
* Checks if the browser has support for native `WebSockets` and that
|
|
* it's not the polyfill created for the FlashSocket transport.
|
|
*
|
|
* @return {Boolean}
|
|
* @api public
|
|
*/
|
|
|
|
WS.check = function () {
|
|
return ('WebSocket' in global && !('__addTask' in WebSocket))
|
|
|| 'MozWebSocket' in global;
|
|
};
|
|
|
|
/**
|
|
* Check if the `WebSocket` transport support cross domain communications.
|
|
*
|
|
* @returns {Boolean}
|
|
* @api public
|
|
*/
|
|
|
|
WS.xdomainCheck = function () {
|
|
return true;
|
|
};
|
|
|
|
/**
|
|
* Add the transport to your public io.transports array.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
io.transports.push('websocket');
|
|
|
|
})(
|
|
'undefined' != typeof io ? io.Transport : module.exports
|
|
, 'undefined' != typeof io ? io : module.parent.exports
|
|
, this
|
|
);
|
|
|
|
/**
|
|
* socket.io
|
|
* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
|
|
* MIT Licensed
|
|
*/
|
|
|
|
(function (exports, io, global) {
|
|
|
|
/**
|
|
* Expose constructor.
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
exports.XHR = XHR;
|
|
|
|
/**
|
|
* XHR constructor
|
|
*
|
|
* @costructor
|
|
* @api public
|
|
*/
|
|
|
|
function XHR (socket) {
|
|
if (!socket) return;
|
|
|
|
io.Transport.apply(this, arguments);
|
|
this.sendBuffer = [];
|
|
};
|
|
|
|
/**
|
|
* Inherits from Transport.
|
|
*/
|
|
|
|
io.util.inherit(XHR, io.Transport);
|
|
|
|
/**
|
|
* Establish a connection
|
|
*
|
|
* @returns {Transport}
|
|
* @api public
|
|
*/
|
|
|
|
XHR.prototype.open = function () {
|
|
this.socket.setBuffer(false);
|
|
this.onOpen();
|
|
this.get();
|
|
|
|
// we need to make sure the request succeeds since we have no indication
|
|
// whether the request opened or not until it succeeded.
|
|
this.setCloseTimeout();
|
|
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Check if we need to send data to the Socket.IO server, if we have data in our
|
|
* buffer we encode it and forward it to the `post` method.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
XHR.prototype.payload = function (payload) {
|
|
var msgs = [];
|
|
|
|
for (var i = 0, l = payload.length; i < l; i++) {
|
|
msgs.push(io.parser.encodePacket(payload[i]));
|
|
}
|
|
|
|
this.send(io.parser.encodePayload(msgs));
|
|
};
|
|
|
|
/**
|
|
* Send data to the Socket.IO server.
|
|
*
|
|
* @param data The message
|
|
* @returns {Transport}
|
|
* @api public
|
|
*/
|
|
|
|
XHR.prototype.send = function (data) {
|
|
this.post(data);
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Posts a encoded message to the Socket.IO server.
|
|
*
|
|
* @param {String} data A encoded message.
|
|
* @api private
|
|
*/
|
|
|
|
function empty () { };
|
|
|
|
XHR.prototype.post = function (data) {
|
|
var self = this;
|
|
this.socket.setBuffer(true);
|
|
|
|
function stateChange () {
|
|
if (this.readyState == 4) {
|
|
this.onreadystatechange = empty;
|
|
self.posting = false;
|
|
|
|
if (this.status == 200){
|
|
self.socket.setBuffer(false);
|
|
} else {
|
|
self.onClose();
|
|
}
|
|
}
|
|
}
|
|
|
|
function onload () {
|
|
this.onload = empty;
|
|
self.socket.setBuffer(false);
|
|
};
|
|
|
|
this.sendXHR = this.request('POST');
|
|
|
|
if (global.XDomainRequest && this.sendXHR instanceof XDomainRequest) {
|
|
this.sendXHR.onload = this.sendXHR.onerror = onload;
|
|
} else {
|
|
this.sendXHR.onreadystatechange = stateChange;
|
|
}
|
|
|
|
this.sendXHR.send(data);
|
|
};
|
|
|
|
/**
|
|
* Disconnects the established `XHR` connection.
|
|
*
|
|
* @returns {Transport}
|
|
* @api public
|
|
*/
|
|
|
|
XHR.prototype.close = function () {
|
|
this.onClose();
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Generates a configured XHR request
|
|
*
|
|
* @param {String} url The url that needs to be requested.
|
|
* @param {String} method The method the request should use.
|
|
* @returns {XMLHttpRequest}
|
|
* @api private
|
|
*/
|
|
|
|
XHR.prototype.request = function (method) {
|
|
var req = io.util.request(this.socket.isXDomain())
|
|
, query = io.util.query(this.socket.options.query, 't=' + +new Date);
|
|
|
|
req.open(method || 'GET', this.prepareUrl() + query, true);
|
|
|
|
if (method == 'POST') {
|
|
try {
|
|
if (req.setRequestHeader) {
|
|
req.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
|
|
} else {
|
|
// XDomainRequest
|
|
req.contentType = 'text/plain';
|
|
}
|
|
} catch (e) {}
|
|
}
|
|
|
|
return req;
|
|
};
|
|
|
|
/**
|
|
* Returns the scheme to use for the transport URLs.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
XHR.prototype.scheme = function () {
|
|
return this.socket.options.secure ? 'https' : 'http';
|
|
};
|
|
|
|
/**
|
|
* Check if the XHR transports are supported
|
|
*
|
|
* @param {Boolean} xdomain Check if we support cross domain requests.
|
|
* @returns {Boolean}
|
|
* @api public
|
|
*/
|
|
|
|
XHR.check = function (socket, xdomain) {
|
|
try {
|
|
var request = io.util.request(xdomain),
|
|
usesXDomReq = (global.XDomainRequest && request instanceof XDomainRequest),
|
|
socketProtocol = (socket && socket.options && socket.options.secure ? 'https:' : 'http:'),
|
|
isXProtocol = (global.location && socketProtocol != global.location.protocol);
|
|
if (request && !(usesXDomReq && isXProtocol)) {
|
|
return true;
|
|
}
|
|
} catch(e) {}
|
|
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Check if the XHR transport supports cross domain requests.
|
|
*
|
|
* @returns {Boolean}
|
|
* @api public
|
|
*/
|
|
|
|
XHR.xdomainCheck = function (socket) {
|
|
return XHR.check(socket, true);
|
|
};
|
|
|
|
})(
|
|
'undefined' != typeof io ? io.Transport : module.exports
|
|
, 'undefined' != typeof io ? io : module.parent.exports
|
|
, this
|
|
);
|
|
/**
|
|
* socket.io
|
|
* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
|
|
* MIT Licensed
|
|
*/
|
|
|
|
(function (exports, io) {
|
|
|
|
/**
|
|
* Expose constructor.
|
|
*/
|
|
|
|
exports.htmlfile = HTMLFile;
|
|
|
|
/**
|
|
* The HTMLFile transport creates a `forever iframe` based transport
|
|
* for Internet Explorer. Regular forever iframe implementations will
|
|
* continuously trigger the browsers buzy indicators. If the forever iframe
|
|
* is created inside a `htmlfile` these indicators will not be trigged.
|
|
*
|
|
* @constructor
|
|
* @extends {io.Transport.XHR}
|
|
* @api public
|
|
*/
|
|
|
|
function HTMLFile (socket) {
|
|
io.Transport.XHR.apply(this, arguments);
|
|
};
|
|
|
|
/**
|
|
* Inherits from XHR transport.
|
|
*/
|
|
|
|
io.util.inherit(HTMLFile, io.Transport.XHR);
|
|
|
|
/**
|
|
* Transport name
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
HTMLFile.prototype.name = 'htmlfile';
|
|
|
|
/**
|
|
* Creates a new Ac...eX `htmlfile` with a forever loading iframe
|
|
* that can be used to listen to messages. Inside the generated
|
|
* `htmlfile` a reference will be made to the HTMLFile transport.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
HTMLFile.prototype.get = function () {
|
|
this.doc = new window[(['Active'].concat('Object').join('X'))]('htmlfile');
|
|
this.doc.open();
|
|
this.doc.write('<html></html>');
|
|
this.doc.close();
|
|
this.doc.parentWindow.s = this;
|
|
|
|
var iframeC = this.doc.createElement('div');
|
|
iframeC.className = 'socketio';
|
|
|
|
this.doc.body.appendChild(iframeC);
|
|
this.iframe = this.doc.createElement('iframe');
|
|
|
|
iframeC.appendChild(this.iframe);
|
|
|
|
var self = this
|
|
, query = io.util.query(this.socket.options.query, 't='+ +new Date);
|
|
|
|
this.iframe.src = this.prepareUrl() + query;
|
|
|
|
io.util.on(window, 'unload', function () {
|
|
self.destroy();
|
|
});
|
|
};
|
|
|
|
/**
|
|
* The Socket.IO server will write script tags inside the forever
|
|
* iframe, this function will be used as callback for the incoming
|
|
* information.
|
|
*
|
|
* @param {String} data The message
|
|
* @param {document} doc Reference to the context
|
|
* @api private
|
|
*/
|
|
|
|
HTMLFile.prototype._ = function (data, doc) {
|
|
this.onData(data);
|
|
try {
|
|
var script = doc.getElementsByTagName('script')[0];
|
|
script.parentNode.removeChild(script);
|
|
} catch (e) { }
|
|
};
|
|
|
|
/**
|
|
* Destroy the established connection, iframe and `htmlfile`.
|
|
* And calls the `CollectGarbage` function of Internet Explorer
|
|
* to release the memory.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
HTMLFile.prototype.destroy = function () {
|
|
if (this.iframe){
|
|
try {
|
|
this.iframe.src = 'about:blank';
|
|
} catch(e){}
|
|
|
|
this.doc = null;
|
|
this.iframe.parentNode.removeChild(this.iframe);
|
|
this.iframe = null;
|
|
|
|
CollectGarbage();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Disconnects the established connection.
|
|
*
|
|
* @returns {Transport} Chaining.
|
|
* @api public
|
|
*/
|
|
|
|
HTMLFile.prototype.close = function () {
|
|
this.destroy();
|
|
return io.Transport.XHR.prototype.close.call(this);
|
|
};
|
|
|
|
/**
|
|
* Checks if the browser supports this transport. The browser
|
|
* must have an `Ac...eXObject` implementation.
|
|
*
|
|
* @return {Boolean}
|
|
* @api public
|
|
*/
|
|
|
|
HTMLFile.check = function (socket) {
|
|
if (typeof window != "undefined" && (['Active'].concat('Object').join('X')) in window){
|
|
try {
|
|
var a = new window[(['Active'].concat('Object').join('X'))]('htmlfile');
|
|
return a && io.Transport.XHR.check(socket);
|
|
} catch(e){}
|
|
}
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Check if cross domain requests are supported.
|
|
*
|
|
* @returns {Boolean}
|
|
* @api public
|
|
*/
|
|
|
|
HTMLFile.xdomainCheck = function () {
|
|
// we can probably do handling for sub-domains, we should
|
|
// test that it's cross domain but a subdomain here
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Add the transport to your public io.transports array.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
io.transports.push('htmlfile');
|
|
|
|
})(
|
|
'undefined' != typeof io ? io.Transport : module.exports
|
|
, 'undefined' != typeof io ? io : module.parent.exports
|
|
);
|
|
|
|
/**
|
|
* socket.io
|
|
* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
|
|
* MIT Licensed
|
|
*/
|
|
|
|
(function (exports, io, global) {
|
|
|
|
/**
|
|
* Expose constructor.
|
|
*/
|
|
|
|
exports['xhr-polling'] = XHRPolling;
|
|
|
|
/**
|
|
* The XHR-polling transport uses long polling XHR requests to create a
|
|
* "persistent" connection with the server.
|
|
*
|
|
* @constructor
|
|
* @api public
|
|
*/
|
|
|
|
function XHRPolling () {
|
|
io.Transport.XHR.apply(this, arguments);
|
|
};
|
|
|
|
/**
|
|
* Inherits from XHR transport.
|
|
*/
|
|
|
|
io.util.inherit(XHRPolling, io.Transport.XHR);
|
|
|
|
/**
|
|
* Merge the properties from XHR transport
|
|
*/
|
|
|
|
io.util.merge(XHRPolling, io.Transport.XHR);
|
|
|
|
/**
|
|
* Transport name
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
XHRPolling.prototype.name = 'xhr-polling';
|
|
|
|
/**
|
|
* Indicates whether heartbeats is enabled for this transport
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
XHRPolling.prototype.heartbeats = function () {
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Establish a connection, for iPhone and Android this will be done once the page
|
|
* is loaded.
|
|
*
|
|
* @returns {Transport} Chaining.
|
|
* @api public
|
|
*/
|
|
|
|
XHRPolling.prototype.open = function () {
|
|
var self = this;
|
|
|
|
io.Transport.XHR.prototype.open.call(self);
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Starts a XHR request to wait for incoming messages.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
function empty () {};
|
|
|
|
XHRPolling.prototype.get = function () {
|
|
if (!this.isOpen) return;
|
|
|
|
var self = this;
|
|
|
|
function stateChange () {
|
|
if (this.readyState == 4) {
|
|
this.onreadystatechange = empty;
|
|
|
|
if (this.status == 200) {
|
|
self.onData(this.responseText);
|
|
self.get();
|
|
} else {
|
|
self.onClose();
|
|
}
|
|
}
|
|
};
|
|
|
|
function onload () {
|
|
this.onload = empty;
|
|
this.onerror = empty;
|
|
self.retryCounter = 1;
|
|
self.onData(this.responseText);
|
|
self.get();
|
|
};
|
|
|
|
function onerror () {
|
|
self.retryCounter ++;
|
|
if(!self.retryCounter || self.retryCounter > 3) {
|
|
self.onClose();
|
|
} else {
|
|
self.get();
|
|
}
|
|
};
|
|
|
|
this.xhr = this.request();
|
|
|
|
if (global.XDomainRequest && this.xhr instanceof XDomainRequest) {
|
|
this.xhr.onload = onload;
|
|
this.xhr.onerror = onerror;
|
|
} else {
|
|
this.xhr.onreadystatechange = stateChange;
|
|
}
|
|
|
|
this.xhr.send(null);
|
|
};
|
|
|
|
/**
|
|
* Handle the unclean close behavior.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
XHRPolling.prototype.onClose = function () {
|
|
io.Transport.XHR.prototype.onClose.call(this);
|
|
|
|
if (this.xhr) {
|
|
this.xhr.onreadystatechange = this.xhr.onload = this.xhr.onerror = empty;
|
|
try {
|
|
this.xhr.abort();
|
|
} catch(e){}
|
|
this.xhr = null;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Webkit based browsers show a infinit spinner when you start a XHR request
|
|
* before the browsers onload event is called so we need to defer opening of
|
|
* the transport until the onload event is called. Wrapping the cb in our
|
|
* defer method solve this.
|
|
*
|
|
* @param {Socket} socket The socket instance that needs a transport
|
|
* @param {Function} fn The callback
|
|
* @api private
|
|
*/
|
|
|
|
XHRPolling.prototype.ready = function (socket, fn) {
|
|
var self = this;
|
|
|
|
io.util.defer(function () {
|
|
fn.call(self);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Add the transport to your public io.transports array.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
io.transports.push('xhr-polling');
|
|
|
|
})(
|
|
'undefined' != typeof io ? io.Transport : module.exports
|
|
, 'undefined' != typeof io ? io : module.parent.exports
|
|
, this
|
|
);
|
|
|
|
/**
|
|
* socket.io
|
|
* Copyright(c) 2011 LearnBoost <dev@learnboost.com>
|
|
* MIT Licensed
|
|
*/
|
|
|
|
(function (exports, io, global) {
|
|
/**
|
|
* There is a way to hide the loading indicator in Firefox. If you create and
|
|
* remove a iframe it will stop showing the current loading indicator.
|
|
* Unfortunately we can't feature detect that and UA sniffing is evil.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
var indicator = global.document && "MozAppearance" in
|
|
global.document.documentElement.style;
|
|
|
|
/**
|
|
* Expose constructor.
|
|
*/
|
|
|
|
exports['jsonp-polling'] = JSONPPolling;
|
|
|
|
/**
|
|
* The JSONP transport creates an persistent connection by dynamically
|
|
* inserting a script tag in the page. This script tag will receive the
|
|
* information of the Socket.IO server. When new information is received
|
|
* it creates a new script tag for the new data stream.
|
|
*
|
|
* @constructor
|
|
* @extends {io.Transport.xhr-polling}
|
|
* @api public
|
|
*/
|
|
|
|
function JSONPPolling (socket) {
|
|
io.Transport['xhr-polling'].apply(this, arguments);
|
|
|
|
this.index = io.j.length;
|
|
|
|
var self = this;
|
|
|
|
io.j.push(function (msg) {
|
|
self._(msg);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Inherits from XHR polling transport.
|
|
*/
|
|
|
|
io.util.inherit(JSONPPolling, io.Transport['xhr-polling']);
|
|
|
|
/**
|
|
* Transport name
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
JSONPPolling.prototype.name = 'jsonp-polling';
|
|
|
|
/**
|
|
* Posts a encoded message to the Socket.IO server using an iframe.
|
|
* The iframe is used because script tags can create POST based requests.
|
|
* The iframe is positioned outside of the view so the user does not
|
|
* notice it's existence.
|
|
*
|
|
* @param {String} data A encoded message.
|
|
* @api private
|
|
*/
|
|
|
|
JSONPPolling.prototype.post = function (data) {
|
|
var self = this
|
|
, query = io.util.query(
|
|
this.socket.options.query
|
|
, 't='+ (+new Date) + '&i=' + this.index
|
|
);
|
|
|
|
if (!this.form) {
|
|
var form = document.createElement('form')
|
|
, area = document.createElement('textarea')
|
|
, id = this.iframeId = 'socketio_iframe_' + this.index
|
|
, iframe;
|
|
|
|
form.className = 'socketio';
|
|
form.style.position = 'absolute';
|
|
form.style.top = '0px';
|
|
form.style.left = '0px';
|
|
form.style.display = 'none';
|
|
form.target = id;
|
|
form.method = 'POST';
|
|
form.setAttribute('accept-charset', 'utf-8');
|
|
area.name = 'd';
|
|
form.appendChild(area);
|
|
document.body.appendChild(form);
|
|
|
|
this.form = form;
|
|
this.area = area;
|
|
}
|
|
|
|
this.form.action = this.prepareUrl() + query;
|
|
|
|
function complete () {
|
|
initIframe();
|
|
self.socket.setBuffer(false);
|
|
};
|
|
|
|
function initIframe () {
|
|
if (self.iframe) {
|
|
self.form.removeChild(self.iframe);
|
|
}
|
|
|
|
try {
|
|
// ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
|
|
iframe = document.createElement('<iframe name="'+ self.iframeId +'">');
|
|
} catch (e) {
|
|
iframe = document.createElement('iframe');
|
|
iframe.name = self.iframeId;
|
|
}
|
|
|
|
iframe.id = self.iframeId;
|
|
|
|
self.form.appendChild(iframe);
|
|
self.iframe = iframe;
|
|
};
|
|
|
|
initIframe();
|
|
|
|
// we temporarily stringify until we figure out how to prevent
|
|
// browsers from turning `\n` into `\r\n` in form inputs
|
|
this.area.value = io.JSON.stringify(data);
|
|
|
|
try {
|
|
this.form.submit();
|
|
} catch(e) {}
|
|
|
|
if (this.iframe.attachEvent) {
|
|
iframe.onreadystatechange = function () {
|
|
if (self.iframe.readyState == 'complete') {
|
|
complete();
|
|
}
|
|
};
|
|
} else {
|
|
this.iframe.onload = complete;
|
|
}
|
|
|
|
this.socket.setBuffer(true);
|
|
};
|
|
|
|
/**
|
|
* Creates a new JSONP poll that can be used to listen
|
|
* for messages from the Socket.IO server.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
JSONPPolling.prototype.get = function () {
|
|
var self = this
|
|
, script = document.createElement('script')
|
|
, query = io.util.query(
|
|
this.socket.options.query
|
|
, 't='+ (+new Date) + '&i=' + this.index
|
|
);
|
|
|
|
if (this.script) {
|
|
this.script.parentNode.removeChild(this.script);
|
|
this.script = null;
|
|
}
|
|
|
|
script.async = true;
|
|
script.src = this.prepareUrl() + query;
|
|
script.onerror = function () {
|
|
self.onClose();
|
|
};
|
|
|
|
var insertAt = document.getElementsByTagName('script')[0];
|
|
insertAt.parentNode.insertBefore(script, insertAt);
|
|
this.script = script;
|
|
|
|
if (indicator) {
|
|
setTimeout(function () {
|
|
var iframe = document.createElement('iframe');
|
|
document.body.appendChild(iframe);
|
|
document.body.removeChild(iframe);
|
|
}, 100);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Callback function for the incoming message stream from the Socket.IO server.
|
|
*
|
|
* @param {String} data The message
|
|
* @api private
|
|
*/
|
|
|
|
JSONPPolling.prototype._ = function (msg) {
|
|
this.onData(msg);
|
|
if (this.isOpen) {
|
|
this.get();
|
|
}
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* The indicator hack only works after onload
|
|
*
|
|
* @param {Socket} socket The socket instance that needs a transport
|
|
* @param {Function} fn The callback
|
|
* @api private
|
|
*/
|
|
|
|
JSONPPolling.prototype.ready = function (socket, fn) {
|
|
var self = this;
|
|
if (!indicator) return fn.call(this);
|
|
|
|
io.util.load(function () {
|
|
fn.call(self);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Checks if browser supports this transport.
|
|
*
|
|
* @return {Boolean}
|
|
* @api public
|
|
*/
|
|
|
|
JSONPPolling.check = function () {
|
|
return 'document' in global;
|
|
};
|
|
|
|
/**
|
|
* Check if cross domain requests are supported
|
|
*
|
|
* @returns {Boolean}
|
|
* @api public
|
|
*/
|
|
|
|
JSONPPolling.xdomainCheck = function () {
|
|
return true;
|
|
};
|
|
|
|
/**
|
|
* Add the transport to your public io.transports array.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
io.transports.push('jsonp-polling');
|
|
|
|
})(
|
|
'undefined' != typeof io ? io.Transport : module.exports
|
|
, 'undefined' != typeof io ? io : module.parent.exports
|
|
, this
|
|
);
|
|
|
|
if (typeof define === "function" && define.amd) {
|
|
define([], function () { return io; });
|
|
}
|
|
})();
|